Sichuan trans-oceanic environmental science and technology ltd. Is registered at 99th floor, no. 1, no. 13th floor, located in the northern section of the city's golden cow zone. The registration authority is the market supervision authority for the golden cow zone, represented by a legal person, and covers general projects: technical services, technology development, technical advice, technology exchange, technology transfer, technology diffusion; engineering and technological research and pilot development; sale of specialized equipment for environmental protection; sale of special instrument instruments for environmental monitoring; installation of general mechanical equipment; information system integration services; environmental protection monitoring; environmental emergency management services; air pollution prevention and control services; indoor air pollution management; ecological rehabilitation and ecological protection services; water environmental pollution control services; atmospheric pollution management; water pollution management; retailing of hardware products. (ii) licensing of projects (in addition to those subject to legal authorization, the operation of which is carried out on an autonomous basis under a licence): construction work. (a project subject to legal approval may only be carried out with the approval of the relevant department, subject to the approval documents or licences of the relevant department)